Clinical value of tuberculosis protein chip in the diagnosis of tuberculosis infection / 中华检验医学杂志

Objective To investigate the Mycobacterium tuberculosis infection status and Clinical Characteristics in Yongchuan District, Chongqing by Tuberculosis Protein Chip.Methods Compared the conventional method to detect Mycobacterium tuberculosis in infectious department outpatient of Yongchuan Hospital , Chongqing Medical University from July 2014 to June 2015.Tuberculosis protein chip was selected to detect the Mycobacterium tuberculosis infection in Yongchuan area.Chi-square Test was applied to analyze the results.Results The positive rate of Tuberculosis Protein Chip, T-SPOT.BT, DNA Chip, Golden immnnochromatog-raphy, Acid-fast staining were 81.5%, 90.7%, 89.5%, 63.5% and 38.3%respectively on 162 cases of Pulmonary tuberculosis.The five methods were considered significant difference on the diagnosis of Pulmonary tuberculosis ( P0.05 ).The highest positive rates of anti-LAM was 94%.Conclusion The results of Tuberculosis protein chip are reliable on pulmonary tuberculosis and extrapulmonary tuberculosis diagnosis.

The study on genotypes and drug resistance-mutations of HBV in chronic hepatitis B patients in Yongchuan area / 重庆医学

Objective To investigate the relationship among HBV genotypes ,nucleoside analogues drug resistance-mutations and the patients with chronic hepatitis B in Yongchuan area .Methods The gene chip was used to detect the nucleoside analogues drug resistance-mutations of 605 cases with chronic hepatitis B ,and the HBV-DNA level was analysised after the antiviral therapy .Re-sults Among 605 cases ,63 .1% genotype were genotype B ,116 cases(19 .17% ) were found to be resistance mutants .The major drug resistance-mutations was genotype B ,49 .14% drug resistance-mutations was Adefovir drug resistance-mutations ,and the re-sistance rate of genotype B with reverse transcriptase 236T mutation was 35 .09% .The resistance rate of genotype B Lamivudine drug resistance-mutations with reverse transcriptase 108M mutation was 34 .29% ,the virus replication between resistance and non-resistant virus were significant difference (P<0 .05) .Conclusion To monitor the hepatitis B patients with HBV resistance gene mutations is beneficial to detect the patients with drug resistance-mutations early ,which is important for selecting reasonable treat-ment methods in clinical practice .